| APA | STPN. (2012, February 14). In Acronym Geek. Retrieved 00:46, February 14, 2012, from http://www.acronymgeek.com/STPN |
| MLA | "STPN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/STPN>. |
| MHRA | 'STPN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/STPN> [accessed 14 February 2012] |
| Chicago | "STPN", http://www.acronymgeek.com/STPN (accessed February 14, 2012). |
| CBE/CSE | STPN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/STPN. |
| Bluebook | STPN, http://www.acronymgeek.com/STPN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, STPN, http://www.acronymgeek.com/STPN (optional description here) (as of Feb. 14, 2012, 00:46). |
| AMA | STPN. Acronym Geek. February 14, 2012, 00:46. Available at: http://www.acronymgeek.com/STPN. Accessed February 14, 2012, 00:46. |